Home / 6,120.20-8,445.30-4,233.80

Finding the Fourth Proportional to 6,120.20, 8,445.30 and 4,233.80

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Solution

The fourth proportional to 6,120.20, 8,445.30 and 4,233.80 is: 5,842.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.20 : 8,445.30 = 4,233.80 : x
  2. Step 2: Convert to fraction form
    6,120.20/8,445.30 = 4,233.80/x
  3. Step 3: Cross multiply
    6,120.20x = 8,445.30 × 4,233.80
  4. Step 4: Simplify right side
    6,120.20x = 35,755,711.14
  5. Step 5: Solve for x
    x = 35,755,711.14/6,120.20
  6. Step 6: Final answer
    x = 5,842.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.